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Investors / Founder Factor / Compare with Y Combinator

Founder Factor vs Y Combinator

Founder Factor lists 85 portfolio companies and has joined 2 funding rounds; Y Combinator lists 5,153 companies and has joined 3,388 rounds. Founder Factor comes in most often at Seed (100% of its entries), Y Combinator comes in most often at Seed (98% of its entries). 30 companies are on both portfolios, among them 10xscience.com, 83 Sciences and Adialante.

Founder FactorView profilevsY CombinatorView profile
85Portfolio companies5,153
2Funding rounds joined3,388
0Rounds led2,960
2Rounds, last 12 months579
$5M to $20MTypical round it comes in atunder $1M
0%Sites no longer answering0%
Show as a table
Founder Factor and Y Combinator, head to head
Founder FactorY Combinator
Portfolio companies855,153
Funding rounds joined23,388
Rounds led02,960
Rounds, last 12 months2579
Typical round it comes in at$5M to $20Munder $1M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed100%98%
Series A0%1%
Series B0%0%
Growth0%1%

Founder FactorY Combinator

Show as a table
Entry stages of Founder Factor and Y Combinator, share of entries
Founder FactorY Combinator
Pre-seed0%0%
Seed100%98%
Series A0%1%
Series B0%0%
Growth0%1%

Themes

share of checked companies
AI & Machine Learning34%26%
Fintech9%13%
Healthcare & Biotech10%11%
Enterprise Software9%10%
Cybersecurity9%5%
Space & Defense8%5%

Founder FactorY Combinator

Show as a table
Themes of Founder Factor and Y Combinator, share of checked companies
Founder FactorY Combinator
AI & Machine Learning34%26%
Fintech9%13%
Healthcare & Biotech10%11%
Enterprise Software9%10%
Cybersecurity9%5%
Space & Defense8%5%

Companies both back

30
10xscience.com10xscience.com83 Sciences83sciences.aiAdialanteadialante.comAgentcardagentcard.shAircaps AIaircaps.comAspectaspect.incBentoLabs AIbentolabs.aiBizmarkbizmark.aiCajal Technologiescaj.alCallbook AIcallbook.aiCellTypecelltype.comComplircomplir.ioCompylecompyle.aiConstellation Spaceconstellation.spaceCorveracorvera.aiCosmic Roboticscosmicrobotics.comCrosslayer Labscrosslayerlabs.comCumulus Labscumuluslabs.ioDiligencesquared Incdiligencesquared.comEigenpaleigenpal.comFinalDosefinaldose.aiForesightforesight.ttCOACHgetcoach.comPrescience Incgetprescience.comClicks Healthgoclicks.aiGojiberry AIgojiberry.aiHardware Intelligencehardwareintelligence.aiHebbian Roboticshebbianrobotics.comLuaheylua.aiHop Aerohopaero.com

Shared companies are those both firms' own portfolio pages list, each checked against the company's site. The same comparison through the API is POST /v1/overlap, for up to 20 firms. How the data is graded

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Compare Founder Factor and Y Combinator as data

Pull both portfolios and every co-investor through one API key or MCP, and lay up to 20 firms side by side with POST /v1/overlap. A free account adds Ask AI searches and alerts when either firm adds a company.

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  • Ask AI5 plain-English investor searches a day
  • Full listsEvery portfolio row and two-firm overlap
  • API and MCP100 REST or MCP calls a month, one key
  • AlertsFollow 5 investors for portfolio and fund changes
VCinfo API
$ curl -H "X-API-Key: YOUR_KEY" \
  https://api.vcinfo.io/v1/firms/founderfactor.com/portfolio

# also
GET /v1/firms/ycombinator.com/portfolio
GET /v1/firms/founderfactor.com/coinvestors
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing